In large skillet, sauté the onions and cashews with 2 tablespoons olive oil over medium high heat. Season with salt and pepper to taste, and sauté until onions are soft and lightly browned. Add garlic and let cook a few more minutes.

In a large bowl combine onion mixture, brown rice, lentils, breadcrumbs, vegetable broth, basil and thyme. Mix together and season to taste with salt and pepper. (The stuffing can be made up to three days in advance and stored covered in the refrigerator.)

Brush both sides of mushroom caps lightly with olive oil and place top-side down on an oiled sheet pan. Stuff mushrooms with about 1/2 cup lentil cashew stuffing, then press one tomato slice on top of the stuffing. (The mushrooms can be stuffed and assembled on a baking tray the day before you plan to bake and serve them.)

Bake for approximately 30 minutes, or until the stuffing is browned and the mushroom begins releasing juices. Garnish with extra fresh thyme leaves.

SHAMAYIM: Jewish Animal Advocacy is a Jewish animal welfare organization that educates leaders, trains advocates, and leads campaigns for the ethical treatment of animals. Contact us at info@shamayimvaretz.org